SIP Service Examples

Some examples of SIP Services are listed below (from RFC 5359)

Attended Transfer
Automatic Redial
Call Forwarding - Busy
Call Forwarding - No Answer
Call Forwarding Unconditional
Call Hold
Call Management (Incoming Call Screening)
Call Management (Outgoing Call Screening)
Call Park
Call Pickup
Consultation Hold
Find-Me
Music On Hold
Single Line Extension
3-way Conference - Third Party Joins
3-way Conference - Third Party is Added
Unattended Transfer

You should compare these to the list given earlier.

Slide Notes

A. Johnston, R. Sparks, C. Cunningham, S. Donovan, and K. Summers, “Session Initiation Protocol Service Examples”, Internet Request for Comments, RFC Editor, RFC 5359 (Best Current Practice), ISSN 2070-1721, October 2008 http://www.rfc-editor.org/rfc/rfc5359.txt Links to an external site.

Transcript

[slide351] We can build all kinds of different services, like call halt, or consultation, music on hold, so it plays background music while I'm listening and waiting. Call forwarding, call forwarding busy, call forwarding no answer, multi-way conferencing, etc. etc. And you can build all kinds of cool services with this. And one of the interesting services that's been built in Japan is the so-called I'm Alive service. Right? And the idea is, in a country that has a very big problem with earthquakes, what happens following an earthquake? Well, people call their friends who live in that area to find out, are they okay? But as we said yesterday, what's the first thing that suffers usually after a big disaster? The communication system. Right? So now you have a problem that an area that's already having problems is suddenly overloaded with calls into the area. So someone said, ah, there's a really simple solution. What do we do? We redirect all those calls somewhere else and set up a service, so after a disaster the user simply calls in and registers, "I'm okay". And now anyone wanting to find out are they okay gets directed to a service, which doesn't have to be anywhere near the region that was affected. Right? It seems like a really trivial thing, but it can make a very, very big difference in terms of supporting the activities.